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Increasing of reliability of power supply from the Jasenie hydropower plant to Železiarně Podbrezová
Budovec, Michal ; Čerňan, Jozef (referee) ; Orságová, Jaroslava (advisor)
This thesis deals with operation of the Jasenie hydroelectric power plant, which supplies electricity to Železiarne Podbrezová Inc. This thesis describes actual operation, devices and equipment in all substations. The second chapter briefly describes company’s history and activities of the company. The next chapter mentions an overview of the sources of own electricity production. The fourth chapter in detail deals with actual situation of the hydroelectric power plant operation, describes devices and equipment in all substations. It also outlines what measures should be taken to increase the reliability of electricity supply. Next part deals with replacing insulators on the 22 kV line. Sixth chapter is focused on protection this line by multifunctional protection relay and data transfer from HC Jasenie to the building of power engineering. In the next step is designed a backup transformer with bus control for thermal and dynamic effects of the short-circuit current. The last chapter is focused on surge protection in HC Jasenie as well as in the area of Stary závod substation. The results and benefits of this work are summarized in the conclusion. The attachment contains schemes of substations and overall overview scheme, which are used for better understanding of this problem.
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USB communication protocol analysis
Zošiak, Dušan ; Fujcik, Lukáš (referee) ; Šteffan, Pavel (advisor)
Tato práce je zaměřena na zpracování a analýzu USB komunikačního protokolu a implementace jeho jednotlivých částí do FPGA obvodu s využitím programovacího jazyka VHDL. Ve finální podobě by měla práce představovat souhrnný a ucelený dokument popisující principy USB rozhraní a jeho komunikace doplněných praktickým návrhem v jazyce VHDL, který by byl schopen převést data do USB.
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Current possibilities of data communication via the power network
Jedlička, Tomáš ; Mišurec, Jiří (referee) ; Mlýnek, Petr (advisor)
This thesis is focused on processing, summary information about PLC commnunication and analyzing present issue of data transfer via powerline grids. Teoretic and technical information about PLC communication, advantages, disadvantages, kinds of PLC communication depending on used frequency ranges and also about used modulation techniques are processed in the first part of the thesis. The second part of thesis is focused on analysis information about choice types of modems and companies, which are oriented on PLC technology. Measurements results of broadband PLC communication are evaluated in the third part of thesis with opportunity to extend and modification it. Laboratory measurement of narrowband PLC communication is processed and focused in this part on transmission speed and spectrum of signal. Results of measurement in company ModemTec are summarized in the end of thesis.
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Demonstration Kit for Keeloq Technology
Fujdiak, Radek ; Burda, Karel (referee) ; Strašil, Ivo (advisor)
Bachelor thesis deals with the design and create of simulation environment for KeeLoq security technology in both the hardware and software point of view. In this thesis, there are mentioned actual security methods and a method of Rolling code, specifically KeeLoq technology, is desired.
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Wireless stopwatch
Hampl, Tomáš ; Pristach, Marián (referee) ; Bohrn, Marek (advisor)
This bachelor thesis describes the design and implementation of the system of the wireless digital stopwatch for timing. Stopwatch is implemented by microprocessor ATmega16 and the wireless transfer of data by module RFM22. The theoretical part of the work is focused on the description of the all used technologies. The practical part is focused on the design and overall realization of the system. For the processing of the measured results is programmed user application. The final result is the functional prototype of the device including software for microprocessors and computer.
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Data transfer in automation production
Konečný, Michael ; Smrž, Jaroslav (referee) ; Lacko, Branislav (advisor)
The aim of this work is to briefly describe main problems of data transfer in automation production and then to descfibe a chosen problematic case and recommend its solution. As the problematic case was chosen the request of Indet Safety Systems, a. s. to come up with a solution that would allow storing and retro-analysis of data measured on produced parts by one of their automatic assembly lines. This case is thoroughly described and a complete solution is proposed.
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Raster Image Data Transfers in FPGA
Musil, Martin ; Kadlček, Filip (referee) ; Zemčík, Pavel (advisor)
This work deals with the design and implementation of high-speed communication interfaces into FPGA chip and their utilizing for image transmission and processing. In the implementation part has been created PCI Express endpoint device, which provides data transfers between the FPGA chip and computer RAM memory. As a source of image data for further processing was connected the Unicam M621 camera throught the Ethernet interface to FPGA chip. The project was implemented on the Xilinx SP605 development board. Using both of the the interfaces were demonstrated on the application of edge detection using Sobel operator. The PCI Express endpoint device driver for the Linux operating system and a simple application interface in C language was also created within this project.
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Datové sběrnice zemědělských strojů
Janeček, Tomáš
The diploma thesis “Agricultural machinery data buses” discusses different types of networks in vehicles, namely in agricultural machinery. In the first part, it is stated what information itself represents and in which ways information, or data, can be transferred. The principle of computer communication is illustrated using the ISO/OSI reference model. It also shows what data buses are used in vehicles, in particular the CAN bus, which provides the communication for the control units of most current vehicles. SAE J1939, the universal communication protocol used in trucks and agricultural equipment, is also described. It is also shown how the tractor is enabled to communicate with the implement via the ISOBUS. The data source was the tractor CASE IH PUMA 195. The obtained data were processed and then displayed in graphs. Each graph has a commentary discussing its potential use in practice. The last part discusses the possibilities of monitoring vehicle operational data and its use to increase the efficiency of operations.
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